One of NASA's two stuck astronauts is getting a change of scenery. Suni Williams stepped out on a spacewalk Thursday, her ...

"Some of the extreme ultraviolet light above active regions flickers erratically for a few hours before a solar flare," ...

We have long been inspired by the idea that life could reside on Mars – human or otherwise. But fiction is getting closer to ...

And it veered close to a major NASA center. After erupting in wooded hills outside of Los Angeles' community of Altadena, the ...

The two astronauts have a busy day ahead of them. Hague and Williams will "patch light leaks in the NICER X-ray telescope, ...

For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the ...

NASA has released images of a vanishing "ghost island" in the Caspian Sea captured by its satellites. The Kumani Bank mud ...

A SpaceX Falcon 9 rocket lifted off from Cape Canaveral on Wednesday morning carrying two private lunar landers into orbit in ...

An exploding budget and an unraveling schedule spell disappointment for NASA's mission to learn more about Mars's history.

A SpaceX mission set to lift off overnight marks a first for Firefly Aerospace under NASA's plans to build up American ...

Firefly Aerospace's first mission to the moon is poised to launch in the early morning hours on Jan. 15. The company's Blue ...

NASA has a number of satellites, including Aqua, that observe the Earth and maintain a continuous stream of climate data ...